create-auth-backend-cli/bin/index.js

CLI to scaffold a Node.js Auth backend with Express, JWT, MongoDB

#!/usr/bin/env node

const fs = require("fs");
const path = require("path");
const { execSync } = require("child_process");

const args = process.argv.slice(2);
const projectName = args[0];

if (!projectName) {
  console.error("❌ Please provide a project name.");
  console.log("Example: npx create-auth-backend my-app");
  process.exit(1);
}

const targetDir = path.join(process.cwd(), projectName);
const templateDir = path.join(__dirname, "../template");

if (fs.existsSync(targetDir)) {
  console.error(`❌ Directory "${projectName}" already exists.`);
  process.exit(1);
}

function copyDir(src, dest) {
  if (!fs.existsSync(dest)) fs.mkdirSync(dest);
  fs.readdirSync(src).forEach(file => {
    const srcPath = path.join(src, file);
    const destPath = path.join(dest, file);
    if (fs.statSync(srcPath).isDirectory()) {
      copyDir(srcPath, destPath);
    } else {
      fs.copyFileSync(srcPath, destPath);
    }
  });
}

console.log(`🚀 Creating your Node.js Auth backend in "${projectName}"...`);
copyDir(templateDir, targetDir);

// Install dependencies
console.log("📦 Installing dependencies...");
try {
  execSync("npm install", { stdio: "inherit", cwd: targetDir });
  console.log("✅ All dependencies installed successfully!");
} catch (err) {
  console.error("❌ Failed to install dependencies. Please run `npm install` manually inside the project folder.");
}

console.log("✅ Done!");
console.log(`👉 Next steps:
   cd ${projectName}
   npm start
`);